Published in

American Geophysical Union, Geophysical Research Letters, 5(49), 2022

DOI: 10.1029/2021gl096073

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Cold Air Outbreaks Promote New Particle Formation Off the U.S. East Coast

Journal article published in 2022 by Andrea F. Corral ORCID, Yonghoon Choi ORCID, Ewan Crosbie ORCID, Hossein Dadashazar ORCID, Joshua P. DiGangi ORCID, Glenn S. Diskin ORCID, Marta Fenn ORCID, David B. Harper, Simon Kirschler ORCID, Hongyu Liu ORCID, Richard H. Moore ORCID, John B. Nowak ORCID, Amy Jo Scarino, Shane Seaman ORCID, Taylor Shingler and other authors.
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

AbstractNew particle formation (NPF) is the dominant contributor to total particle number concentration and plays an important role in the cloud condensation nuclei budget. Airborne data from Aerosol Cloud meTeorology Interactions oVer the western ATlantic Experiment (ACTIVATE) are used to address seasonal NPF statistics and factors related to NPF in and around clouds. Higher ratios of particle concentrations greater than 3 versus 10 nm (N3/N10) were mainly observed above boundary layer cloud tops during winter as compared to summer. Cold dry air and low aerosol surface area concentration facilitate NPF over the ACTIVATE region; these conditions are especially prevalent during flights coinciding with cold air outbreaks.